Line data Source code
1 : /* THIS FILE IS AUTOGENERATED FROM PromiseRejectionEvent.webidl BY Codegen.py - DO NOT EDIT */
2 :
3 : #include "AtomList.h"
4 : #include "EventBinding.h"
5 : #include "PromiseRejectionEventBinding.h"
6 : #include "WrapperFactory.h"
7 : #include "mozilla/OwningNonNull.h"
8 : #include "mozilla/dom/BindingUtils.h"
9 : #include "mozilla/dom/DOMJSClass.h"
10 : #include "mozilla/dom/NonRefcountedDOMObject.h"
11 : #include "mozilla/dom/PrimitiveConversions.h"
12 : #include "mozilla/dom/Promise.h"
13 : #include "mozilla/dom/PromiseRejectionEvent.h"
14 : #include "mozilla/dom/ScriptSettings.h"
15 : #include "mozilla/dom/ToJSValue.h"
16 : #include "mozilla/dom/XrayExpandoClass.h"
17 : #include "nsContentUtils.h"
18 :
19 : namespace mozilla {
20 : namespace dom {
21 :
22 :
23 0 : PromiseRejectionEventInit::PromiseRejectionEventInit()
24 0 : : EventInit(FastDictionaryInitializer()),
25 0 : mReason(JS::UndefinedValue())
26 : {
27 : // Safe to pass a null context if we pass a null value
28 0 : Init(nullptr, JS::NullHandleValue);
29 0 : }
30 :
31 :
32 : bool
33 0 : PromiseRejectionEventInit::InitIds(JSContext* cx, PromiseRejectionEventInitAtoms* atomsCache)
34 : {
35 0 : MOZ_ASSERT(!*reinterpret_cast<jsid**>(atomsCache));
36 :
37 : // Initialize these in reverse order so that any failure leaves the first one
38 : // uninitialized.
39 0 : if (!atomsCache->reason_id.init(cx, "reason") ||
40 0 : !atomsCache->promise_id.init(cx, "promise")) {
41 0 : return false;
42 : }
43 0 : return true;
44 : }
45 :
46 : bool
47 0 : PromiseRejectionEventInit::Init(JSContext* cx, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
48 : {
49 : // Passing a null JSContext is OK only if we're initing from null,
50 : // Since in that case we will not have to do any property gets
51 : // Also evaluate isNullOrUndefined in order to avoid false-positive
52 : // checkers by static analysis tools
53 0 : MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined());
54 0 : PromiseRejectionEventInitAtoms* atomsCache = nullptr;
55 0 : if (cx) {
56 0 : atomsCache = GetAtomCache<PromiseRejectionEventInitAtoms>(cx);
57 0 : if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
58 0 : return false;
59 : }
60 : }
61 :
62 : // Per spec, we init the parent's members first
63 0 : if (!EventInit::Init(cx, val)) {
64 0 : return false;
65 : }
66 :
67 0 : bool isNull = val.isNullOrUndefined();
68 : // We only need these if !isNull, in which case we have |cx|.
69 0 : Maybe<JS::Rooted<JSObject *> > object;
70 0 : Maybe<JS::Rooted<JS::Value> > temp;
71 0 : if (!isNull) {
72 0 : MOZ_ASSERT(cx);
73 0 : object.emplace(cx, &val.toObject());
74 0 : temp.emplace(cx);
75 : }
76 0 : if (!isNull) {
77 0 : if (!JS_GetPropertyById(cx, *object, atomsCache->promise_id, temp.ptr())) {
78 0 : return false;
79 : }
80 : }
81 0 : if (!isNull && !temp->isUndefined()) {
82 : { // Scope for our GlobalObject, FastErrorResult, JSAutoCompartment,
83 : // etc.
84 :
85 0 : JS::Rooted<JSObject*> globalObj(cx, JS::CurrentGlobalOrNull(cx));
86 0 : JSAutoCompartment ac(cx, globalObj);
87 0 : GlobalObject promiseGlobal(cx, globalObj);
88 0 : if (promiseGlobal.Failed()) {
89 0 : return false;
90 : }
91 :
92 0 : JS::Rooted<JS::Value> valueToResolve(cx, temp.ref());
93 0 : if (!JS_WrapValue(cx, &valueToResolve)) {
94 0 : return false;
95 : }
96 0 : binding_detail::FastErrorResult promiseRv;
97 : nsCOMPtr<nsIGlobalObject> global =
98 0 : do_QueryInterface(promiseGlobal.GetAsSupports());
99 0 : if (!global) {
100 0 : promiseRv.ThrowWithCustomCleanup(NS_ERROR_UNEXPECTED);
101 0 : MOZ_ALWAYS_TRUE(promiseRv.MaybeSetPendingException(cx));
102 0 : return false;
103 : }
104 0 : mPromise = Promise::Resolve(global, cx, valueToResolve,
105 0 : promiseRv);
106 0 : if (promiseRv.MaybeSetPendingException(cx)) {
107 0 : return false;
108 : }
109 : }
110 0 : mIsAnyMemberPresent = true;
111 0 : } else if (cx) {
112 : // Don't error out if we have no cx. In that
113 : // situation the caller is default-constructing us and we'll
114 : // just assume they know what they're doing.
115 0 : return ThrowErrorMessage(cx, MSG_MISSING_REQUIRED_DICTIONARY_MEMBER,
116 0 : "'promise' member of PromiseRejectionEventInit");
117 : }
118 :
119 0 : if (!isNull) {
120 0 : if (!JS_GetPropertyById(cx, *object, atomsCache->reason_id, temp.ptr())) {
121 0 : return false;
122 : }
123 : }
124 0 : if (!isNull && !temp->isUndefined()) {
125 : #ifdef __clang__
126 : #pragma clang diagnostic push
127 : #pragma clang diagnostic ignored "-Wunreachable-code"
128 : #pragma clang diagnostic ignored "-Wunreachable-code-return"
129 : #endif // __clang__
130 0 : if ((passedToJSImpl) && !CallerSubsumes(temp.ref())) {
131 0 : ThrowErrorMessage(cx, MSG_PERMISSION_DENIED_TO_PASS_ARG, "'reason' member of PromiseRejectionEventInit");
132 0 : return false;
133 : }
134 : #ifdef __clang__
135 : #pragma clang diagnostic pop
136 : #endif // __clang__
137 0 : mReason = temp.ref();
138 : } else {
139 0 : mReason = JS::UndefinedValue();
140 : }
141 0 : mIsAnyMemberPresent = true;
142 0 : return true;
143 : }
144 :
145 : bool
146 0 : PromiseRejectionEventInit::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
147 : {
148 0 : PromiseRejectionEventInitAtoms* atomsCache = GetAtomCache<PromiseRejectionEventInitAtoms>(cx);
149 0 : if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
150 0 : return false;
151 : }
152 :
153 : // Per spec, we define the parent's members first
154 0 : if (!EventInit::ToObjectInternal(cx, rval)) {
155 0 : return false;
156 : }
157 0 : JS::Rooted<JSObject*> obj(cx, &rval.toObject());
158 :
159 : do {
160 : // block for our 'break' successCode and scope for 'temp' and 'currentValue'
161 0 : JS::Rooted<JS::Value> temp(cx);
162 0 : OwningNonNull<Promise> const & currentValue = mPromise;
163 0 : if (!ToJSValue(cx, currentValue, &temp)) {
164 0 : return false;
165 : }
166 0 : if (!JS_DefinePropertyById(cx, obj, atomsCache->promise_id, temp, JSPROP_ENUMERATE)) {
167 0 : return false;
168 : }
169 0 : break;
170 : } while(0);
171 :
172 : do {
173 : // block for our 'break' successCode and scope for 'temp' and 'currentValue'
174 0 : JS::Rooted<JS::Value> temp(cx);
175 0 : JS::Value const & currentValue = mReason;
176 0 : JS::ExposeValueToActiveJS(currentValue);
177 0 : temp.set(currentValue);
178 0 : if (!MaybeWrapValue(cx, &temp)) {
179 0 : return false;
180 : }
181 0 : if (!JS_DefinePropertyById(cx, obj, atomsCache->reason_id, temp, JSPROP_ENUMERATE)) {
182 0 : return false;
183 : }
184 0 : break;
185 : } while(0);
186 :
187 0 : return true;
188 : }
189 :
190 : void
191 0 : PromiseRejectionEventInit::TraceDictionary(JSTracer* trc)
192 : {
193 0 : EventInit::TraceDictionary(trc);
194 0 : JS::UnsafeTraceRoot(trc, &mReason, "PromiseRejectionEventInit.mReason");
195 0 : }
196 :
197 : namespace binding_detail {
198 : } // namespace binding_detail
199 :
200 :
201 : namespace PromiseRejectionEventBinding {
202 :
203 : static_assert(IsRefcounted<NativeType>::value == IsRefcounted<EventBinding::NativeType>::value,
204 : "Can't inherit from an interface with a different ownership model.");
205 :
206 : static bool
207 0 : get_promise(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::PromiseRejectionEvent* self, JSJitGetterCallArgs args)
208 : {
209 0 : auto result(StrongOrRawPtr<Promise>(self->RejectedPromise()));
210 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
211 0 : if (!ToJSValue(cx, result, args.rval())) {
212 0 : return false;
213 : }
214 0 : return true;
215 : }
216 :
217 : static bool
218 0 : get_promise_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::PromiseRejectionEvent* self, JSJitGetterCallArgs args)
219 : {
220 0 : bool ok = get_promise(cx, obj, self, args);
221 0 : if (ok) {
222 0 : return true;
223 : }
224 0 : JS::Rooted<JSObject*> globalForPromise(cx);
225 : // We can't use xpc::XrayAwareCalleeGlobal here because we have no
226 : // callee. Use our hacky version instead.
227 0 : if (!xpc::XrayAwareCalleeGlobalForSpecializedGetters(cx, obj,
228 : &globalForPromise)) {
229 0 : return false;
230 : }
231 0 : return ConvertExceptionToPromise(cx, globalForPromise, args.rval());
232 : }
233 :
234 : static const JSJitInfo promise_getterinfo = {
235 : { (JSJitGetterOp)get_promise_promiseWrapper },
236 : { prototypes::id::PromiseRejectionEvent },
237 : { PrototypeTraits<prototypes::id::PromiseRejectionEvent>::Depth },
238 : JSJitInfo::Getter,
239 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
240 : JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
241 : false, /* isInfallible. False in setters. */
242 : false, /* isMovable. Not relevant for setters. */
243 : false, /* isEliminatable. Not relevant for setters. */
244 : false, /* isAlwaysInSlot. Only relevant for getters. */
245 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
246 : false, /* isTypedMethod. Only relevant for methods. */
247 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
248 : };
249 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
250 : static_assert(0 < 1, "There is no slot for us");
251 :
252 : static bool
253 0 : get_reason(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::PromiseRejectionEvent* self, JSJitGetterCallArgs args)
254 : {
255 0 : JS::Rooted<JS::Value> result(cx);
256 0 : self->GetReason(cx, &result);
257 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
258 0 : JS::ExposeValueToActiveJS(result);
259 0 : args.rval().set(result);
260 0 : if (!MaybeWrapValue(cx, args.rval())) {
261 0 : return false;
262 : }
263 0 : return true;
264 : }
265 :
266 : static const JSJitInfo reason_getterinfo = {
267 : { (JSJitGetterOp)get_reason },
268 : { prototypes::id::PromiseRejectionEvent },
269 : { PrototypeTraits<prototypes::id::PromiseRejectionEvent>::Depth },
270 : JSJitInfo::Getter,
271 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
272 : JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */
273 : false, /* isInfallible. False in setters. */
274 : false, /* isMovable. Not relevant for setters. */
275 : false, /* isEliminatable. Not relevant for setters. */
276 : false, /* isAlwaysInSlot. Only relevant for getters. */
277 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
278 : false, /* isTypedMethod. Only relevant for methods. */
279 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
280 : };
281 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
282 : static_assert(0 < 1, "There is no slot for us");
283 :
284 : static bool
285 0 : get_isTrusted(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::PromiseRejectionEvent* self, JSJitGetterCallArgs args)
286 : {
287 0 : bool result(self->IsTrusted());
288 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
289 0 : args.rval().setBoolean(result);
290 0 : return true;
291 : }
292 :
293 : static const JSJitInfo isTrusted_getterinfo = {
294 : { (JSJitGetterOp)get_isTrusted },
295 : { prototypes::id::PromiseRejectionEvent },
296 : { PrototypeTraits<prototypes::id::PromiseRejectionEvent>::Depth },
297 : JSJitInfo::Getter,
298 : JSJitInfo::AliasDOMSets, /* aliasSet. Not relevant for setters. */
299 : JSVAL_TYPE_BOOLEAN, /* returnType. Not relevant for setters. */
300 : true, /* isInfallible. False in setters. */
301 : true, /* isMovable. Not relevant for setters. */
302 : true, /* isEliminatable. Not relevant for setters. */
303 : false, /* isAlwaysInSlot. Only relevant for getters. */
304 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
305 : false, /* isTypedMethod. Only relevant for methods. */
306 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
307 : };
308 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
309 : static_assert(0 < 1, "There is no slot for us");
310 :
311 : static bool
312 0 : _addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
313 : {
314 0 : mozilla::dom::PromiseRejectionEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::PromiseRejectionEvent>(obj);
315 : // We don't want to preserve if we don't have a wrapper, and we
316 : // obviously can't preserve if we're not initialized.
317 0 : if (self && self->GetWrapperPreserveColor()) {
318 0 : PreserveWrapper(self);
319 : }
320 0 : return true;
321 : }
322 :
323 : static void
324 0 : _finalize(js::FreeOp* fop, JSObject* obj)
325 : {
326 0 : mozilla::dom::PromiseRejectionEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::PromiseRejectionEvent>(obj);
327 0 : if (self) {
328 0 : ClearWrapper(self, self, obj);
329 0 : AddForDeferredFinalization<mozilla::dom::PromiseRejectionEvent>(self);
330 : }
331 0 : }
332 :
333 : static void
334 0 : _objectMoved(JSObject* obj, const JSObject* old)
335 : {
336 0 : mozilla::dom::PromiseRejectionEvent* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::PromiseRejectionEvent>(obj);
337 0 : if (self) {
338 0 : UpdateWrapper(self, self, obj, old);
339 : }
340 0 : }
341 :
342 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
343 : #if defined(__clang__)
344 : #pragma clang diagnostic push
345 : #pragma clang diagnostic ignored "-Wmissing-braces"
346 : #endif
347 : static const JSPropertySpec sAttributes_specs[] = {
348 : { "promise", JSPROP_SHARED | JSPROP_ENUMERATE, GenericPromiseReturningBindingGetter, &promise_getterinfo, nullptr, nullptr },
349 : { "reason", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &reason_getterinfo, nullptr, nullptr },
350 : { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
351 : };
352 : #if defined(__clang__)
353 : #pragma clang diagnostic pop
354 : #endif
355 :
356 :
357 : // Can't be const because the pref-enabled boolean needs to be writable
358 : static Prefable<const JSPropertySpec> sAttributes[] = {
359 : { nullptr, &sAttributes_specs[0] },
360 : { nullptr, nullptr }
361 : };
362 :
363 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
364 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
365 : static_assert(2 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
366 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
367 :
368 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
369 : #if defined(__clang__)
370 : #pragma clang diagnostic push
371 : #pragma clang diagnostic ignored "-Wmissing-braces"
372 : #endif
373 : static const JSPropertySpec sUnforgeableAttributes_specs[] = {
374 : { "isTrusted", JSPROP_SHARED | JSPROP_ENUMERATE | JSPROP_PERMANENT, GenericBindingGetter, &isTrusted_getterinfo, nullptr, nullptr },
375 : { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
376 : };
377 : #if defined(__clang__)
378 : #pragma clang diagnostic pop
379 : #endif
380 :
381 :
382 : // Can't be const because the pref-enabled boolean needs to be writable
383 : static Prefable<const JSPropertySpec> sUnforgeableAttributes[] = {
384 : { nullptr, &sUnforgeableAttributes_specs[0] },
385 : { nullptr, nullptr }
386 : };
387 :
388 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
389 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
390 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
391 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
392 :
393 :
394 : static uint16_t sNativeProperties_sortedPropertyIndices[3];
395 : static PropertyInfo sNativeProperties_propertyInfos[3];
396 :
397 : static const NativePropertiesN<2> sNativeProperties = {
398 : false, 0,
399 : false, 0,
400 : false, 0,
401 : true, 0 /* sAttributes */,
402 : false, 0,
403 : true, 1 /* sUnforgeableAttributes */,
404 : false, 0,
405 : -1,
406 : 3,
407 : sNativeProperties_sortedPropertyIndices,
408 : {
409 : { sAttributes, &sNativeProperties_propertyInfos[0] },
410 : { sUnforgeableAttributes, &sNativeProperties_propertyInfos[2] }
411 : }
412 : };
413 : static_assert(3 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
414 : "We have a property info count that is oversized");
415 :
416 : static bool
417 0 : _constructor(JSContext* cx, unsigned argc, JS::Value* vp)
418 : {
419 0 : JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
420 0 : JS::Rooted<JSObject*> obj(cx, &args.callee());
421 0 : if (!args.isConstructing()) {
422 : // XXXbz wish I could get the name from the callee instead of
423 : // Adding more relocations
424 0 : return ThrowConstructorWithoutNew(cx, "PromiseRejectionEvent");
425 : }
426 :
427 0 : GlobalObject global(cx, obj);
428 0 : if (global.Failed()) {
429 0 : return false;
430 : }
431 :
432 0 : JS::Rooted<JSObject*> desiredProto(cx);
433 0 : if (!GetDesiredProto(cx, args, &desiredProto)) {
434 0 : return false;
435 : }
436 :
437 0 : if (MOZ_UNLIKELY(args.length() < 2)) {
438 0 : return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "PromiseRejectionEvent");
439 : }
440 0 : bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
441 0 : binding_detail::FakeString arg0;
442 0 : if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
443 0 : return false;
444 : }
445 0 : RootedDictionary<binding_detail::FastPromiseRejectionEventInit> arg1(cx);
446 0 : if (!arg1.Init(cx, args[1], "Argument 2 of PromiseRejectionEvent.constructor", false)) {
447 0 : return false;
448 : }
449 0 : Maybe<JSAutoCompartment> ac;
450 0 : if (objIsXray) {
451 0 : obj = js::CheckedUnwrap(obj);
452 0 : if (!obj) {
453 0 : return false;
454 : }
455 0 : ac.emplace(cx, obj);
456 0 : if (!JS_WrapObject(cx, &desiredProto)) {
457 0 : return false;
458 : }
459 0 : if (!JS_WrapValue(cx, JS::MutableHandle<JS::Value>::fromMarkedLocation(&arg1.mReason))) {
460 0 : return false;
461 : }
462 : }
463 0 : binding_detail::FastErrorResult rv;
464 0 : auto result(StrongOrRawPtr<mozilla::dom::PromiseRejectionEvent>(mozilla::dom::PromiseRejectionEvent::Constructor(global, NonNullHelper(Constify(arg0)), Constify(arg1), rv)));
465 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
466 0 : return false;
467 : }
468 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
469 : static_assert(!IsPointer<decltype(result)>::value,
470 : "NewObject implies that we need to keep the object alive with a strong reference.");
471 0 : if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
472 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
473 0 : return false;
474 : }
475 0 : return true;
476 : }
477 :
478 : static const js::ClassOps sInterfaceObjectClassOps = {
479 : nullptr, /* addProperty */
480 : nullptr, /* delProperty */
481 : nullptr, /* getProperty */
482 : nullptr, /* setProperty */
483 : nullptr, /* enumerate */
484 : nullptr, /* newEnumerate */
485 : nullptr, /* resolve */
486 : nullptr, /* mayResolve */
487 : nullptr, /* finalize */
488 : _constructor, /* call */
489 : nullptr, /* hasInstance */
490 : _constructor, /* construct */
491 : nullptr, /* trace */
492 : };
493 :
494 : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
495 : {
496 : "Function",
497 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
498 : &sInterfaceObjectClassOps,
499 : JS_NULL_CLASS_SPEC,
500 : JS_NULL_CLASS_EXT,
501 : &sInterfaceObjectClassObjectOps
502 : },
503 : eInterface,
504 : true,
505 : prototypes::id::PromiseRejectionEvent,
506 : PrototypeTraits<prototypes::id::PromiseRejectionEvent>::Depth,
507 : sNativePropertyHooks,
508 : "function PromiseRejectionEvent() {\n [native code]\n}",
509 : EventBinding::GetConstructorObject
510 : };
511 :
512 : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
513 : {
514 : "PromiseRejectionEventPrototype",
515 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE + 1 /* slot for the JSObject holding the unforgeable properties */),
516 : JS_NULL_CLASS_OPS,
517 : JS_NULL_CLASS_SPEC,
518 : JS_NULL_CLASS_EXT,
519 : JS_NULL_OBJECT_OPS
520 : },
521 : eInterfacePrototype,
522 : false,
523 : prototypes::id::PromiseRejectionEvent,
524 : PrototypeTraits<prototypes::id::PromiseRejectionEvent>::Depth,
525 : sNativePropertyHooks,
526 : "[object PromiseRejectionEventPrototype]",
527 : EventBinding::GetProtoObject
528 : };
529 :
530 : bool
531 1 : ConstructorEnabled(JSContext* aCx, JS::Handle<JSObject*> aObj)
532 : {
533 1 : return nsContentUtils::PromiseRejectionEventsEnabled(aCx, aObj);
534 : }
535 :
536 : JSObject*
537 0 : DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
538 : {
539 0 : return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
540 : }
541 :
542 : static const js::ClassOps sClassOps = {
543 : _addProperty, /* addProperty */
544 : nullptr, /* delProperty */
545 : nullptr, /* getProperty */
546 : nullptr, /* setProperty */
547 : nullptr, /* enumerate */
548 : nullptr, /* newEnumerate */
549 : nullptr, /* resolve */
550 : nullptr, /* mayResolve */
551 : _finalize, /* finalize */
552 : nullptr, /* call */
553 : nullptr, /* hasInstance */
554 : nullptr, /* construct */
555 : nullptr, /* trace */
556 : };
557 :
558 : static const js::ClassExtension sClassExtension = {
559 : nullptr, /* weakmapKeyDelegateOp */
560 : _objectMoved /* objectMovedOp */
561 : };
562 :
563 : static const DOMJSClass sClass = {
564 : { "PromiseRejectionEvent",
565 : JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1) | JSCLASS_SKIP_NURSERY_FINALIZE,
566 : &sClassOps,
567 : JS_NULL_CLASS_SPEC,
568 : &sClassExtension,
569 : JS_NULL_OBJECT_OPS
570 : },
571 : { prototypes::id::Event, prototypes::id::PromiseRejectionEvent, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
572 : IsBaseOf<nsISupports, mozilla::dom::PromiseRejectionEvent >::value,
573 : sNativePropertyHooks,
574 : FindAssociatedGlobalForNative<mozilla::dom::PromiseRejectionEvent>::Get,
575 : GetProtoObjectHandle,
576 : GetCCParticipant<mozilla::dom::PromiseRejectionEvent>::Get()
577 : };
578 : static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
579 : "Must have the right minimal number of reserved slots.");
580 : static_assert(1 >= 1,
581 : "Must have enough reserved slots.");
582 :
583 : const JSClass*
584 0 : GetJSClass()
585 : {
586 0 : return sClass.ToJSClass();
587 : }
588 :
589 : bool
590 0 : Wrap(JSContext* aCx, mozilla::dom::PromiseRejectionEvent* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
591 : {
592 : MOZ_ASSERT(static_cast<mozilla::dom::PromiseRejectionEvent*>(aObject) ==
593 : reinterpret_cast<mozilla::dom::PromiseRejectionEvent*>(aObject),
594 : "Multiple inheritance for mozilla::dom::PromiseRejectionEvent is broken.");
595 : MOZ_ASSERT(static_cast<mozilla::dom::Event*>(aObject) ==
596 : reinterpret_cast<mozilla::dom::Event*>(aObject),
597 : "Multiple inheritance for mozilla::dom::Event is broken.");
598 0 : MOZ_ASSERT(ToSupportsIsCorrect(aObject));
599 0 : MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
600 0 : MOZ_ASSERT(!aCache->GetWrapper(),
601 : "You should probably not be using Wrap() directly; use "
602 : "GetOrCreateDOMReflector instead");
603 :
604 0 : MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
605 : "nsISupports must be on our primary inheritance chain");
606 :
607 0 : JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
608 0 : if (!global) {
609 0 : return false;
610 : }
611 0 : MOZ_ASSERT(JS_IsGlobalObject(global));
612 0 : MOZ_ASSERT(JS::ObjectIsNotGray(global));
613 :
614 : // That might have ended up wrapping us already, due to the wonders
615 : // of XBL. Check for that, and bail out as needed.
616 0 : aReflector.set(aCache->GetWrapper());
617 0 : if (aReflector) {
618 : #ifdef DEBUG
619 0 : binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
620 : #endif // DEBUG
621 0 : return true;
622 : }
623 :
624 0 : JSAutoCompartment ac(aCx, global);
625 0 : JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
626 0 : if (!canonicalProto) {
627 0 : return false;
628 : }
629 0 : JS::Rooted<JSObject*> proto(aCx);
630 0 : if (aGivenProto) {
631 0 : proto = aGivenProto;
632 : // Unfortunately, while aGivenProto was in the compartment of aCx
633 : // coming in, we changed compartments to that of "parent" so may need
634 : // to wrap the proto here.
635 0 : if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
636 0 : if (!JS_WrapObject(aCx, &proto)) {
637 0 : return false;
638 : }
639 : }
640 : } else {
641 0 : proto = canonicalProto;
642 : }
643 :
644 0 : BindingJSObjectCreator<mozilla::dom::PromiseRejectionEvent> creator(aCx);
645 0 : creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
646 0 : if (!aReflector) {
647 0 : return false;
648 : }
649 :
650 0 : aCache->SetWrapper(aReflector);
651 :
652 : // Important: do unforgeable property setup after we have handed
653 : // over ownership of the C++ object to obj as needed, so that if
654 : // we fail and it ends up GCed it won't have problems in the
655 : // finalizer trying to drop its ownership of the C++ object.
656 : JS::Rooted<JSObject*> unforgeableHolder(aCx,
657 0 : &js::GetReservedSlot(canonicalProto, DOM_INTERFACE_PROTO_SLOTS_BASE).toObject());
658 0 : if (!JS_InitializePropertiesFromCompatibleNativeObject(aCx, aReflector, unforgeableHolder)) {
659 0 : aCache->ReleaseWrapper(aObject);
660 0 : aCache->ClearWrapper();
661 0 : return false;
662 : }
663 0 : creator.InitializationSucceeded();
664 :
665 0 : MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
666 : aCache->GetWrapperPreserveColor() == aReflector);
667 : // If proto != canonicalProto, we have to preserve our wrapper;
668 : // otherwise we won't be able to properly recreate it later, since
669 : // we won't know what proto to use. Note that we don't check
670 : // aGivenProto here, since it's entirely possible (and even
671 : // somewhat common) to have a non-null aGivenProto which is the
672 : // same as canonicalProto.
673 0 : if (proto != canonicalProto) {
674 0 : PreserveWrapper(aObject);
675 : }
676 :
677 0 : return true;
678 : }
679 :
680 : const NativePropertyHooks sNativePropertyHooks[] = { {
681 : nullptr,
682 : nullptr,
683 : nullptr,
684 : { sNativeProperties.Upcast(), nullptr },
685 : prototypes::id::PromiseRejectionEvent,
686 : constructors::id::PromiseRejectionEvent,
687 : EventBinding::sNativePropertyHooks,
688 : &DefaultXrayExpandoObjectClass
689 : } };
690 :
691 : void
692 0 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
693 : {
694 0 : JS::Handle<JSObject*> parentProto(EventBinding::GetProtoObjectHandle(aCx));
695 0 : if (!parentProto) {
696 0 : return;
697 : }
698 :
699 0 : JS::Handle<JSObject*> constructorProto(EventBinding::GetConstructorObjectHandle(aCx));
700 0 : if (!constructorProto) {
701 0 : return;
702 : }
703 :
704 : static bool sIdsInited = false;
705 0 : if (!sIdsInited && NS_IsMainThread()) {
706 0 : if (!InitIds(aCx, sNativeProperties.Upcast())) {
707 0 : return;
708 : }
709 0 : sIdsInited = true;
710 : }
711 :
712 0 : JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::PromiseRejectionEvent);
713 0 : JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::PromiseRejectionEvent);
714 0 : dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
715 : &sPrototypeClass.mBase, protoCache,
716 : constructorProto, &sInterfaceObjectClass.mBase, 2, nullptr,
717 : interfaceCache,
718 : sNativeProperties.Upcast(),
719 : nullptr,
720 : "PromiseRejectionEvent", aDefineOnGlobal,
721 : nullptr,
722 0 : false);
723 :
724 0 : JS::Rooted<JSObject*> unforgeableHolder(aCx);
725 : {
726 0 : JS::Rooted<JSObject*> holderProto(aCx, *protoCache);
727 0 : unforgeableHolder = JS_NewObjectWithoutMetadata(aCx, sClass.ToJSClass(), holderProto);
728 0 : if (!unforgeableHolder) {
729 0 : *protoCache = nullptr;
730 0 : if (interfaceCache) {
731 0 : *interfaceCache = nullptr;
732 : }
733 0 : return;
734 : }
735 : }
736 :
737 0 : if (!DefineUnforgeableAttributes(aCx, unforgeableHolder, sUnforgeableAttributes)) {
738 0 : *protoCache = nullptr;
739 0 : if (interfaceCache) {
740 0 : *interfaceCache = nullptr;
741 : }
742 0 : return;
743 : }
744 :
745 0 : if (*protoCache) {
746 0 : js::SetReservedSlot(*protoCache, DOM_INTERFACE_PROTO_SLOTS_BASE,
747 0 : JS::ObjectValue(*unforgeableHolder));
748 : }
749 : }
750 :
751 : JS::Handle<JSObject*>
752 0 : GetProtoObjectHandle(JSContext* aCx)
753 : {
754 : /* Get the interface prototype object for this class. This will create the
755 : object as needed. */
756 0 : bool aDefineOnGlobal = true;
757 :
758 : /* Make sure our global is sane. Hopefully we can remove this sometime */
759 0 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
760 0 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
761 0 : return nullptr;
762 : }
763 :
764 : /* Check to see whether the interface objects are already installed */
765 0 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
766 0 : if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::PromiseRejectionEvent)) {
767 0 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
768 0 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
769 : }
770 :
771 : /*
772 : * The object might _still_ be null, but that's OK.
773 : *
774 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
775 : * traced by TraceProtoAndIfaceCache() and its contents are never
776 : * changed after they have been set.
777 : *
778 : * Calling address() avoids the read read barrier that does gray
779 : * unmarking, but it's not possible for the object to be gray here.
780 : */
781 :
782 0 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::PromiseRejectionEvent);
783 0 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
784 0 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
785 : }
786 :
787 : JS::Handle<JSObject*>
788 0 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
789 : {
790 : /* Get the interface object for this class. This will create the object as
791 : needed. */
792 :
793 : /* Make sure our global is sane. Hopefully we can remove this sometime */
794 0 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
795 0 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
796 0 : return nullptr;
797 : }
798 :
799 : /* Check to see whether the interface objects are already installed */
800 0 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
801 0 : if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::PromiseRejectionEvent)) {
802 0 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
803 0 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
804 : }
805 :
806 : /*
807 : * The object might _still_ be null, but that's OK.
808 : *
809 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
810 : * traced by TraceProtoAndIfaceCache() and its contents are never
811 : * changed after they have been set.
812 : *
813 : * Calling address() avoids the read read barrier that does gray
814 : * unmarking, but it's not possible for the object to be gray here.
815 : */
816 :
817 0 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::PromiseRejectionEvent);
818 0 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
819 0 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
820 : }
821 :
822 : JSObject*
823 0 : GetConstructorObject(JSContext* aCx)
824 : {
825 0 : return GetConstructorObjectHandle(aCx);
826 : }
827 :
828 : } // namespace PromiseRejectionEventBinding
829 :
830 :
831 :
832 : } // namespace dom
833 : } // namespace mozilla
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